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<p>In this work, the synthesis, structural characterization, and magnetic properties of a series of dinuclear and trinuclear antiferromagnetic copper (II) complexes with different bridging ligands are studied. The research employs antiferromagnetic theoretical models and experimental data to analyze the magnetic characteristics, including magnetization plateaus, magnetic susceptibility, and entanglement entropy. The results demonstrate significant changes in the magnetization behavior of the complexes, revealing distinct 1/3 magnetization plateaus and saturation points corresponding to different exchange interactions. The entanglement entropy analyses further correlate these magnetic transitions, offering insights into the quantum behavior of these metal-containing spin-1/2 compounds at low temperatures. These results highlight the importance of ligand design in tuning the magnetic properties of copper (II) complexes, providing a foundation for future studies of similar antiferromagnetic systems.</p>

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Magnetic properties and entanglement in antiferromagnetic interactions in copper(II) dinuclear and trinuclear complexes

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年4月6日

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  • Onofre Rojas,
  • Gor Mirzoyan,
  • Zhirayr Adamyan,
  • Vladimir V. Papoyan,
  • Gayane Amatuni,
  • Nerses Ananikian

摘要

In this work, the synthesis, structural characterization, and magnetic properties of a series of dinuclear and trinuclear antiferromagnetic copper (II) complexes with different bridging ligands are studied. The research employs antiferromagnetic theoretical models and experimental data to analyze the magnetic characteristics, including magnetization plateaus, magnetic susceptibility, and entanglement entropy. The results demonstrate significant changes in the magnetization behavior of the complexes, revealing distinct 1/3 magnetization plateaus and saturation points corresponding to different exchange interactions. The entanglement entropy analyses further correlate these magnetic transitions, offering insights into the quantum behavior of these metal-containing spin-1/2 compounds at low temperatures. These results highlight the importance of ligand design in tuning the magnetic properties of copper (II) complexes, providing a foundation for future studies of similar antiferromagnetic systems.